Stadtbahn Bielefeld - My interpretation of the network. Included some pointers for bus connections and accessibility. Did it for fun. Enjoy! Chris : r/TransitDiagrams
Stadtbahn: Bielefeld metro map, Germany
All change: New routes new in Bielefeld - Urban Transport Magazine
Light Rail Bielefeld - M8C at Sieker-Mitte by Northlander-Photos on DeviantArt